williams



(No Model.) 2 $heets-Sheet 1.

H. A. WILLIAMS.

MACHINE FOR REDUCING METAL RODS.

No. 388,938. H51 Patented Sept. 4, 1888,

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(No Model.) 2 Sheets-Sheet 2.

H. A. WILLIAMS.

MACHINE FOR REDUCING METAL RODS No. 388,938. Pafiented Sept. 4, 1888,

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UNrTED STATES PATENT @rrrcE.

HENRY A. \VILLIAMS, OF TAUNTON, MASSACHUSETTS, ASSIGNOR TO THE H. A. WILLIAMS MANUFACTURING COMPANY, OF SAME PLACE.

MACHINE FOR REDUCING METAL RODS.

SPECIFICATION forming part of Letters Patent No. 388,938, dated September 4, 1888.

Application tiled March 8, 1886.

To aZZ whom, it may concern.-

Be it known that I, HENRY A.WrLL1AMs, of 'launton, in the county of Bristol and State of Massachusetts, have invented a new and useful Machine for Reducing Metal Beds, of which the followingis a specification, reference being bad to the accompanyingdrawings, in which- Figure 1 is a plan showing so much of a rolling-machine as is necessary to show my invention. Fig. 2 is an end view with some of the parts removed for greater clearness. Figs. 3 and 4 are side views. Fig. 5 is a modifica tion. Fig. 6 is a section on line a: 00 of Fig. 1.

My invention is a machine which in its simplest form consists of apair of rolls revolving in the same direction, every cross-section of each roll being concentric with its axis of revolution, as will be clear from a description in detail of that form of my machine shown in the drawings.

The frame of the machine (illustrated by Figs. 1, 2, 3, 4, and 6) is composed of a bed, F, upon which are secured the end brackets, 2, and the intermediate brackets, 1. These brackets support the boxes of the rolls-that is, the bed F and brackets 1 2 are the frame of the machine, which is a double machine that'is, has two pairs of rolls, each pair embodying my invention.

The rolls A A" are mounted in boxes D D", and these boxes are supported in any suitable way, too well known to require description. These rolls A A and the rolls A A are connected in the usual way (indicated in Fig. 1) to any suitable source of power to compel the rolls to revolve each on its axis, but in the same direction as A, and A in the same direction as A The rolls A A are mounted each in its boxes I), and these boxes are so mountcd in brackets 1 that the roll A can be gradually moved bodily (while it is revolving on its axis) toward the roll A, and the roll A toward the roll A The means shown for thus moving the roll A toward A and the roll A toward roll A is the shaft 1) (jonrnaied in brackets 1,) and having upon it eccentrics, as shown in Figs. 1 and 2, acting on bars d, laid in recesses in the said brackets between the jourrial-boxes in the roll and the said eccentrics, so that when the shaft D is rotated by the hand-wheel the eccentrics act on the said bars Serial No. 194.455. {No model.)

and push them against thejournal-boxes,thns moving the rolls A and A nearer the rolls A and A". The rolls Aand A will be moved away from the rolls A A as shown,byinserting between the said rolls the metal rod to be reduced. The bearers b b extend up from the frame of the machine sufliciently high to sup port the rod of metal to be reduced.

With the pair of rolls A A,i prefer that one of the bearers,b,shall be near the middle ofthe length of the rolls, and the other hearer,b near the free end of the rolls, as shown in Figs. 1 and 4; but with other forms of rolls, such as A A, the bearers are best arranged as shown at b b of Figs. 1 and 3.

In operating with the rolls A A the roll A is first moved away from A, as shown, by inserting the metal rod B to be reduced between the said rolis,the said rod being supported by the bearer b, and its outer end placed in the bore of guide or bearer bflwhich brings the axis of the rod B substantially parallel with the axes of the rolls A A. (See Figs. 1 and 3.) \Vith the rod in this position, and while both rolls A A are revolving in the same direction, the hand-w heel D is turned to cause the eccen tries to act on the bars (Z and move the roll A gradually toward roll A until the rod B is nipped with the desired pressure at the proper points in its length between the parts a a of rollsA A, and as the roll A gradually approaches the roll A the rod B is reduced in diameter and drawn into the form shown atB in Fig. 1.

It will be seen that the rod 13 is rotated rapidly on its axis as soon as it is nipped between the rolls A and A, and that its diameter is gradually reduced by the gradual approach of roll A toward roll A. Its feed lengthwise is caused by setting the rolls A A so that while their axes are in substantially parallel planes yet the axes are not exactly parallel with each other. This is best done as illustrated in Figs. 1, 4, and 6, from which it will be seen that while the rolls A A appear to be parallel in Fig. 1 yet one end of A is slightly lower than one end of A. This causes the rod B to be moved endwise out through the tube which forms part of the bearer or guide 0' as that rod is rotated on its axis.

The rod Bis cylindrical when first operated on by the rolls A A, and is tapered at one end by the first operation and at the other end by the second operation, being thereby reduced approximately to the shape desired. It is then placed between the rolls A A and laid upon the bearers b. The roll A" is then moved toward roll A (as before explained,) and as soon as the rod B is nipped between them it is rapidly revolved upon its axis and reduced to the desired shape, at the same time beings0 lidified, hardened, straightened, and rounded. The rod is of course heated to the proper heat when the metal of which it is composed is not adapted to be rolled cold.

In Fig. 5 I have shown a modified form of my machine, in which the rolls are cylindrical, but with their axes inclined, so that when a rod is fed toward the rolls A" A through the guide or bearer 1) its end will be nipped between the rolls A A and reduced to a taper.

My machine is adapted to rolling not only tapers and irregular forms, as above explained, but also to rolling cylindrical rods. Thus if the blank be inserted between the rolls A A and then the roll A be moved toward the roll A the desired distance and then be held in that relation with the roll A the rod will he reduced to. a cylinder whose di ameter will be equal to the distance between the parts a a of rolls AA after the roll A is set with relation to roll A; or if the rolls A A were cylindricahwith their axes parallel, a cylindrical blank placed between them would be nipped as the roll A was moved toward roll A and would be reduced in diameter and elongated.

\Vhat I claim is 1. In a machine, a pair of rolls rotating in the same direction, combined with a shaft and an eccentric or cam mounted thereon, and by which to move one of the said rolls bodily toward the other while the machine is in operation, substantially as described.

2. In a machine, a pair of rolls rotating in the same directiomcoinbined with an eccentric or cam and a bar interposed between the said eccentric or cam and one of the said rolls, sub stantially as described.

HENRY A. WILLIAMS.

7 i messes:

LEONARD A. WHITE, EDWARD A. SEARLE. 

